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- Skip navigation An official website of the United States government Here’s how you know Here’s how you know Official websites use .gov A .gov website belongs ...
- Allergens, like pollen, are nothing more than foreign plant antigens. When they get released into the air, you can see and hear the result.When allergens ...
- Health Videos: MedlinePlus (National Library of Medicine)Skip navigation An official website of the United States government Here’s how you know Here’s how you know Official websites use .gov A .gov website belongs ...
- The brain is composed of more than a thousand billion neurons. Specific groups of them, working in concert, provide us with the capacity to reason, to ...
- Blood Transfusions (For Teens) (Nemours Foundation)
- Ouch! Here's how platelets form clots. This small artery has a cut. Blood flowing past the cut includes red blood cells that carry oxygen, platelets that ...
- Coping with Traumatic Events (National Institute of Mental Health)Skip to main content Transforming the understanding and treatment of mental illnesses. Search the NIMH Website: Información en español Celebrating 75 Years! ...
- As the heart pumps, arteries, shown here in red, carry oxygen-rich blood away from the heart toward the body's tissues and vital organs. These include ...
- Heat-Related Illnesses (American College of Emergency Physicians)American College of Emergency Physicians Topics Newsroom About Us Topics Newsroom About Us Heat-Related Illnesses Heat-related illness can be caused by overexposure ...
- A plaque is an abnormal cluster of protein fragments. Such clusters can be found between nerve cells in the brain of someone with Alzheimer. A microscope ...